Quite normal for cars to have only one I think. I expect the bean counters had the final say!

Yup, only one is required but IIRC it has to be offside.

Can be a styling thing where the nearside is a reversing light and offside a fog light.

Fairly sure my van has two rear fog lamps?? My car has just the one.

I seem to recall that only one fog lamp is allowed in Germany, and can be anywhere left of the centreline on LHD - for RHD car in the UK some makers switch the single lamp to the other side, others simply add one on the right.

What a shining example of dangerous BBS (british boneheaded stupidity) presumably from thoughtless people who rarely travel on crowded wet foggy motorways at night. I have mentioned this before on this site - I once nearly ran into the back of someone on the M1 because the two foglights were so bright it took a valuable fraction of a second to realise the brake lights had come on.

The Germans have got it absolutely right - nothing to to do with cost cutting. All my Audis have had a single rear fog light. (My TR7 has two foglights, but they are slung below the bumper, well away from the brakelights).

It's been very foggy here in Yorkshire today and I think the majority of cars only have one fog lamp.

The only car I owned that had two rear fog lights was an Opel Monza, and I did use them on that car very early in the morning at the start of a long journey to Scotland in thick fog in December. I've also used them sometimes when driving through thick bands of fog, but you have to be responsible and turn them off when clear again.

Maybe they aren't so worthwhile since the improvement in rear lights over the years until recently where they are now of ridiculous intensity. On the old cars some rear lights could be really feeble, and the fog light would be more useful in that situation.

Saw a relatively modern Mercedes saloon this evening, possibly a CLS. It was very foggy so the driver had put their rear fog light on. Yes, singular, one solitary fog light at the rear of the car. At some points in the fog it looked like a motorbike! How much would it have cost Mercedes to put two rear fog lights in....

Be thankful that at least they had their fog light(s) on in actual foggy conditions. Many people don't or leave them on when not needed these days. Some even drive in the dark without any lights on, because they often forget because a built up area is well lit.

Cars with no rear lights at night probably have nice bright DRLs so they think their lights are on.

I use pretty much the same logic as mcb, if I am travelling at a safe distance from the car in front and I can clearly see its rear lights, then there is obviously no need to put fog light on. Sadly this logic seem totally alien to most drivers I encounter in foggy conditions. Fog light goes on at the merest hint of foggy conditions and that's it till they reach their destination!.

What irks me most are those who have their fog light on, but believe the visibility is good enough for them to be overtaking other cars on single carriageway roads.

But I do actually use mine fairly regular as there are a couple of spots I regularly travel through which, for whatever reason, are particularly prone to fog. At times this can be thick enough to necessitate slowing to 30mph or less!.

News just in from a fairly foggy M5 through Somerset:. Probably about 20% of cars had their fog lights on. HGVs around 50% but the tail lights on their trailers are pretty miserable.

Of the cars, I saw 4 (in 50 minutes) with two rear fogs; an Audi, an Alfa, a Ford Focus and something else.

Surely the best way to do that would be to have a rear fog light(s) in a clearly different shape, such as a triangle or even circle (remember the Rover SD1?) Maybe a different colour such as green would solve that, although some i**** would mistake them for traffic lights or a doctor on call sooner or later..

Foglights are intended to be seen from distance. I can't believe most people's vision would be able to recognise the shape of a distant bright light, especially in fog.